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Heart|Lab Grown|IGI

20.42ct F VS2 Heart Lab Grown Diamond

EX • F/VS2 • IGI LG627442949

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG627442949

Diamond specifications and retailer prices

From $17,639 AUD
£9,734 GBP
As of November 2, 2026
Save $5,312 AUD (23%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $22,950 AUD at Friendly Diamonds · As of November 2, 2026
View at Friendly Diamonds

About this 20.42ct lab-grown heart diamond

This 20.42ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627442949 or 627442949. Listed at 8 retailers as of November 2, 2026, with prices from $17,639 to $22,950, a $5,312 spread on the same certified stone. Friendly Diamonds lists it at $22,950. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.42
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627442949
Dimensions17.19 × 19.42 × 10.65 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
17.19 mm19.42 mm20.42 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627442949
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 54.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $22,950 AUD|Low: $17,639 AUD|High: $70,794 AUD|Avg: $30,152 AUD|-10.9%
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$17,639 AUD
Retailer 5$18,934 AUD
Retailer 7$19,389 AUD
Retailer 9$19,561 AUD
Retailer 6$20,583 AUD
Retailer 8$20,711 AUD
Retailer 4$21,745 AUD
Retailer 10$22,362 AUD
Friendly Diamonds$22,950 AUD
Retailer 3$59,473 AUD
Retailer 11$70,794 AUD

26 data points across 11 retailers

8 retailers$17,639 AUD to $22,950 AUD

B+
Cheapest Retailer
-
$17,639 AUD
£9,734 GBP
B+
Retailer 2
-
$18,934 AUD
$13,269 USD
View
B+
Retailer 3
-
$19,389 AUD
$13,588 USD
View
B
Retailer 4
-
$19,561 AUD
$13,709 USD
View
B+
Retailer 5
-
$20,583 AUD
$14,425 USD
View
B+
Retailer 6
-
$20,711 AUD
$14,515 USD
View
B
Retailer 7
-
$21,745 AUD
$15,239 USD
View
Most Expensive
B
Friendly Diamonds
1228534 · Nov 2
$22,950 AUD
$16,084 USD
View
7 more retailers have this diamond
Prices start from $17,639 AUDSave up to $5,312 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
20.42ct Heart
$17,639 AUD